Mainly sporadic, isolated but also permanent faults occur in the throttle grip sensor, throttle...
BMW technical service bulletin MC130121 for 2019 BMW R1200 GS and 2025 BMW R 1300 GS.
- Bulletin number
- MC130121
- Component
- Electrical system
- Summary
- Mainly sporadic, isolated but also permanent faults occur in the throttle grip sensor, throttle valve,crankshaft signal, camshaft signal, transmission signal, fuel pressure sensor, gear-lever sensor (GearShift Assistant), oxygen sensor and switching cam. These can result in functional impairments andmalfunctions, fault messages and fault memory entries. Besides isolated defective components, the sporadic faults are often mainly caused by contactproblems and increased contact resistances. These can generally occur along the entire signal pathof the respective affected component, but especially at plug connections. In this context, the plugconnection to the engine control unit has emerged as the main focus of the fault. Analyses of defective parts showed that in many cases the passivation (a production coating) of thepins at the plug-in contact (plug connection) of the engine control unit can result in correspondingfaults. A service solution for cleaning the pins has been created which can considerably improvecontact if implemented correctly. In most cases, this means that exchanging expensive componentslike the DME or the wiring harness can be avoided.
Vehicles covered
- BMW R1200 GS 2019 2019
- BMW R 1300 GS 2025 2025
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